<?php

class UsersController extends Controller
{
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout='//layouts/site';
    private $_userid= null;
    private $_model;
	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
            'usersContext + create update',
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array('index','view'),
				'users'=>array('*'),
			),
			array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('create','update'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','delete'),
				'users'=>array('admin'),
			),
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
	   $userpro = new UserProfiles;
		$this->render('view',array(
			'model'=>$this->loadModel($id),
            'userpro'=>$userpro,
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$model=new Users;
		if(isset($_POST['Users']))
		{
			$model->attributes=$_POST['Users'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->id));
		}

		$this->render('create',array(
			'model'=>$model,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($uid)
	{
		$model=$this->loadUpdate($uid);

		if(isset($_POST['Users']))
		{
			$model->attributes=$_POST['Users'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->id));
		}

		$this->render('update',array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		if(Yii::app()->request->isPostRequest)
		{
			// we only allow deletion via POST request
			$this->loadModel($id)->delete();

			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if(!isset($_GET['ajax']))
				$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
		}
		else
			throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
	     $nameUser = Yii::app()->user->name;
         $IdUser = Yii::app()->db->createCommand("SELECT id FROM users WHERE username ='".$nameUser."'")->queryScalar();
         
         $IdProfiles = Yii::app()->db->createCommand("SELECT id FROM user_profiles WHERE user_id ='".$IdUser."'")->queryScalar();
         
         
		$dataProvider=new CActiveDataProvider('Users');
		$this->render('index',array(
			'dataProvider'=>$dataProvider,
            'IdProfiles'=>$IdProfiles,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Users('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Users']))
			$model->attributes=$_GET['Users'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer the ID of the model to be loaded
	 */
	public function loadModel($id)
	{
		if($this->_model===null)
        {
            if(isset($_GET['id']))
                $this->_model=Users::model()->findbyPk($_GET['id']);
            if($this->_model===null)
                throw new CHttpException(404,'The requested page does not exist.');
        }
        return $this->_model;
	}
	public function loadUpdate($uid)
	{
		if($this->_model===null)
        {
            if(isset($_GET['uid']))
                $this->_model=Users::model()->findbyPk($_GET['uid']);
            if($this->_model===null)
                throw new CHttpException(404,'The requested page does not exist.');
        }
        return $this->_model;
	}
	/**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='users-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
    /**
     *Authentication 
     */
    public function filterUsersContext($filterChain)
    {   $nameUser = Yii::app()->user->name;
        $model = new Users ;
        $iduser = Yii::app()->db->createCommand("SELECT id FROM users WHERE  username = '".$nameUser."'")->queryScalar();
        $userId = null;
        
        if (isset($_GET['uid']) && $_GET['uid'] === $iduser)
                $userId=$_GET['uid'];
        else
            if(isset($_POST['uid']))
                if($_POST['uid'] = 1)
                $userId= $_POST['uid'];
        $this->loadUser($userId);
        
        $filterChain->run();
    }
    
    protected function loadUser($user_id)
    {
        
        if($this->_userid=== null){
            $this->_userid=Users::model()->findByPk(($user_id));
            if($this->_userid===null){
                throw new CHttpException (404,'Bạn Không Được Truy Cập VÀo Chức Năng Này ^^.');
            }
        }
        return $this->_userid;
    }
}
